Math, asked by manubhai0, 9 months ago

47x + 31y =67
31x + 47y = 15

X+Y = ?

Answers

Answered by veerendrakumaruppu

2

47x + 31y = 67 ——> 1

31x + 47y = 15 ——> 2

Add equations 1 & 2,

78x + 78y = 82

x + y = 82/78

x + y = 41/39 ——> Answer

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